We upgraded ourselves over the weekend and my first full day went very well. The slowness seems to be primarily with closing the chart. If you try to rush, the second hit on the red X results in closing AC and the need to reopen. Today I go to my second office with older computers. Will see how that goes. We have an appt with AC to do the upgrade for us on Thursday but I guess we will just have them check our work and turn on our controlled substance e prescribe functionality.